Last reviewed on July 24, 2015   —  79 Comments

There are many techniques for keeping your Outlook information on two different machines. However, Microsoft has not released a synchronization utility for Outlook.

Note that the methods on this page or sync utilities are not necessary if you have a Hotmail/Live account and use the Outlook Hotmail connector as it syncs messages, calendar and contacts between Outlook and online. Utilities are also not needed if you have an Exchange server account.

For simple “syncing” of email, choose an IMAP email account if your email provider supports it. If you use a POP3 account, leave mail on the server until the other computer has downloaded the messages and BCC yourself on sent messages. You can send appointments and contacts to yourself as needed, or use one of the methods below to copy non-mail items to your other computers.

Listed below are three methods which do not require third party tools, along with tools that will sync two Outlooks.

For tools you can use to sync between Exchange Public folders and mailboxes, see Synchronizing Exchange Mailboxes and Public Folders.

Synchronizing Outlook using Web Services has information on using Internet services to sync two copies of Outlook.

Built-in methods | PDA | Other Tools | More Information

Built-in methods

These include:

  • For Exchange Server users, offline folders to replicate data from your mailbox and favorite Public Folders to a remote system
  • Copying all or part of your Personal Folders File (see Windows Briefcase below)



If you use a Palm device, PocketPC, other PDA, check to see whether your synchronization software allows you to synchronize the device with more than one computer. If so, you may be able to use the PDA as an intermediary to synchronize two computers:

Computer 1 <-> PDA <-> Computer 2

Good backups on both computers would be essential to ensure that you can always roll back to a previously synchronized set of data. See Synchronizing Microsoft Outlook with a PDA for tools.

Note that the file names may differ on your machine. See Outlook & Exchange/Windows Messaging Backup and Dual-Boot for default names and locations.

Beginning with Windows 2000, Windows versions offer a feature for taking files offline, but by default, it excludes Personal Folders .pst files. However, you can edit the system policy that controls the file types so that .pst files can be included. See Error Message Files of This Type Cannot Be Made Available Offline.


Tools in the Spotlight

Akruto Sync

Use Akruto Sync to synchronize your Outlook Contacts and Calendar directly with Windows Phone, iPhone or iPad, and Android. Akruto Sync runs on your computer and makes your computer appear to mobile devices like a reduced functionality Microsoft Exchange server. Just run Akruto Sync on your computer and tell your phone that there is an Exchange Server in your house. Syncs via Wifi. Note: It does not sync Google Calendar and Outlook directly; it syncs Outlook with unlimited devices.


Automatically share Microsoft Outlook folders on multiple PCs in an easy way. Share all types of folders (calendars, contacts, emails, journals, notes and tasks). Just add email addresses which should receive the folder and you are all set-up. No extra work is required.

CodeTwo Outlook Sync

CodeTwo Outlook Sync allows you to synchronize Outlook between two PCs. Use it to share all Outlook items with your assistant, workmate, secretary or partner. You can also use it to backup Outlook files to another computer. It enables syncing calendars, contacts, tasks, email, documents and many more in a local network. The program is amazingly easy to install and configure.

CompanionLink for Google

Do you need a solution to sync Outlook and Gmail Calendar and Contacts when Gmail ends ActiveSync? CompanionLink keeps Microsoft Outlook and your Google account synchronized. Make changes in Outlook and those will update your Google account. And vice versa. Set the auto-sync feature to automate the entire process. CompanionLink works with any Google, Gmail, or Google Apps account.

Companionlink for Outlook

CompanionLink synchronizes Outlook data with phones and other supported desktop applications and web-based services (like Google). Companionlink supports all versions of Outlook, including Outlook 2013 32-bit and 64-bit, and Windows 8, and Windows 8 Phones.


Use PSTSync to perform Outlook synchronizations, helping you synchronize every Outlook folder, even custom created ones. PSTSync provides bi-directional folder synchronization as well as a number of other tools to help you manage your pst files with ease, PSTSync offers SmartMove and SmartCopy functionality as well as Encryption, Password Protection, Online Backup as well as the popular built in PST file viewer. It takes into consideration the time and date in calendar according to GMT (a PSTSync exclusive) Version 2.9


SimpleSYN provides synchronization of Outlook data on several computers automatically and in real-time. The data synchronization is carried out via network or, in the business version, optionally over the Internet. All e-mails, notes, tasks, appointments, contacts are updated and immediately available on all computers. SimpleSYN is flexible in its setup with the direction and mode of the synchronization (new, changed and deleted items) set individually for each Outlook folder. SimpleSYN Business version can run as a Windows service. Compatible with Windows 10 and Outlook 2016, 2013 (32-/64-Bit) and Outlook 2007. Uses the .NET Framework 4.5. Free trial available.


123 Sync 2012

Sync ACT! Contacts, Calendar, Tasks with ALL devices that sync with Outlook or Exchange. Integrate Exchange-Stored Sent and received Emails with ACT!Compatible with Outlook, Exchange, Office 365, Google, iCloud and any other cloud service that supports Exchange.

Accurate PST Sync

Accurate PST Sync (APSync) is designed to easily sync or transfer messages from Outlook. The software helps you compare, transfer your email, appointments, contacts, tasks, and notes. It synchronizes your Outlook PST files in one click. Works with Outlook 2003/2007/2010.

Calendar Sync +

This utility synchronizes Outlook calendar entries to a designated Google calendar. It allows user to choose Outlook Profile, Mailbox and Calendar. It deletes old entries from Google calendar and updates new appointments. User can Setup Sync Frequency as Hourly, Daily, or Weekly. Uses .Net framework 4.5. Outlook 2007 and above are supported.

Calendar Sync for Outlook and Google Calendar

Software to sync Outlook Calendar appointments with Google Calendar events. Allows you to sync one-way with either Outlook or Google as master as well as 2way sync by last changed appointments/events. Option to schedule a sync at regular intervals.


CalendarShare is an Outlook calendar sharing solution with a different approach from other sharing solutions: instead of synchronizing appointments in the background while outlook is running, CalendarShare performs all synchronizations before Outlook is launched (i.e. first thing in the morning), working directly with the PST file, without relying on the Outlook API. All shared calendars can be viewed using Outlook, and in addition, CalendarShare offers a web interface, so users can view shared calendars from anywhere.


CloudsPlus is your no software solution for synchronizing Microsoft Exchange and Salesforce data. Supports all versions of Outlook including Outlook 2010 64 bit, iPad, Mac Outlook 2011 and any device that can connect to Microsoft. Exchange. Synchronize, contacts, calendar, tasks, and log email plus more...

CodeTwo FolderSync Addin

CodeTwo FolderSync Addin is an Outlook add-in that enables synchronization of folders. The synchronization of data will always take place between selected folders and the user can choose several pairs of folders that need synchronizing. Freeware.

CodeTwo Sync for iCloud

CodeTwo Sync for iCloud syncs Outlook folders with iCloud folders automatically synchronizes Outlook contacts, calendars and tasks with the iCloud data file in Outlook. CodeTwo Sync for iCloud will let you keep the iCloud and Outlook folders in sync, so you don't need to move or copy contacts and appointments between the default Outlook folders and iCloud folders. 30 day trial available.

CompanionLink for Mac

CompanionLink for Mac keeps Outlook for Mac contacts, calendars, tasks, and categories synchronized with either a Google account, smartphone, or tablet. You can choose your destination in the Settings menu of the software. Two-way direct sync.

Contacts Sync for Outlook and Google Contacts

Contacts Sync - Synchronize Outlook Contacts with Gmail - Freeware and Pro version. 2way contacts sync, sync Outlook Categories, pictures, notes, sync by last changed contact, skip Outlook Category, sync Outlook Contacts to 2 Gmail accounts, Preview Sync with option to download entire Outlook/Gmail contact list as single CSV file and more.


DavSync is a two-way synchronization tool for users of MS Outlook with Microsoft Exchange. It is designed to transfer Outlook entries between Local and Shared (Public) Contact, Calendar or Task Folders, so that the contents are available easily in the user's mailbox, and can be synchronized with the user's PDA, Blackberry etc. Any additions, changes or deletions made to the user's local folders can be passed to the Public folders so that other members of staff can be similarly updated.

Davton ContactSync

Davton ContactSync is a free tool which will synchronise contacts in one contact folder to another. It is designed to synchronise contacts from a shared Microsoft Outlook 'Public Folder' to a personal folder - so that the contacts can be synchronised to a PDA using ActiveSync. It is a one way synchronization - changes made in the local folder or on the PDA will not be reflected back to the Public folder.


Easy2Sync for Outlook keeps your personal store in sync on multiple computers. Try the free version which only synchronizes the inbox and outbox, the Home-Edition to sync all email folders, or the Business-Edition which synchronizes all folder types. Improved support for Business use: Simpler user interface, improved Exchange synchronization. Supports Outlook 2010 (32 and 64 bit) and portable USB installations for the sync of e-mails, contacts and calendars. Version 4.

EVO Collaborator for Outlook

EVO Collaborator for Outlook is a CardDAV and CalDAV add-in supporting 32- and 64-bit Outlook 2007 to 2013. Sync Outlook address books with CardDAV servers and calendars and tasks with CalDAV servers. Works with SabreDAV-based WebDAV servers, iCloud and Yahoo and AOL (in read only mode). Map Outlook's default address book, calendar or task within a CardDAV/CalDAV profile. Download EVO Collaborator for Outlook

Exina SyncWizard for Outlook

Exina SyncWizard for Outlook is an Outlook synchronization utility. Which can make your Outlook synchronized between 2 computers, typically sync your laptop Outlook personal folder with desktop's, backup your Outlook to avoid disk disaster, and migrate Outlook to new computer easily. It's a real easy-to-use and powerful application, All of what you need to do is just select target machine which you want to sync and follow the wizard, click next and next. That's all.


ExMixedFolders is a system service for Exchange Server as of version 2007 SP1 which can synchronize folders within the Exchange server structure or it can synchronize folders of other Exchange servers. The service can be installed remotely, for example on Hosted Exchange servers or it can be installed directly on the Exchange server. The user does not have any point of contact with the service.


EZOutlookSync will keep 2 or more copies of MS Outlook always up-to-date. EZOutlookSync will transfer only changed data, making synchronizations real quick and unobtrusive. Works on Outlook 2000/2002/2003.

GO Contact Sync Mod

GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and notes. Since version 3.5.6 it also syncs your Outlook Notes on demand to Google Drive. Since version 3.7.0 it also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go Contact Sync'.

GooOut Multisynchronizer

GooOut syncs Outlook calendar and contacts with your Google / GMail account. Stay in the known and up-to-date by synchronizing your Google Account on your Google based smartphones. Sync Outlook Calendar & Contacts with Google Calendar & Contacts, one way sync and Merge possible. No server needed.

Lumis Calendar Sync

This outlook add-in syncs your Outlook appointments from work to your private calendar on, so you can get reminders on your smartphone. If you use outlook at work, but cannot sync your appointment with your smartphone (e.g. because your company is not allowing your phone to sync with the companies exchange server), Lumis Calendar Sync syncs the subject and meeting room from your appointments (no participants, no content) - just enough to provide you with reminders, and only in one direction (from your default calendar to your private calendar).


Backup and synchronize your personal data (contacts, calendar, files, bookmarks, etc.)with your phone, tablet and computer

messageconcept PeopleSync

messageconcept PeopleSync acts as a directory connector for mobile devices. The software synchronizes the company’s address lists automatically with your smartphones, tablets and applications. PeopleSync works with enterprise sources, such as Office 365, Exchange Server, SharePoint, databases and various CRM systems. On client side all LDAP and CardDAV clients are supported. Therefore the address books can be accessed and synchronized on iPhone, iPad, Android, Windows Phone, BlackBerry and even office phones.


Sync Google calendars and contacts with Outlook. Requires yearly subscription.


Use OsaSync to share or synchronize your Outlook contacts, calendar, and tasks with one or more other computers on your network. All changes made to a shared Outlook item are automatically reflected in the item on the other computer(s). Supports fully automatic synchronization--just connect your computer to the network or the internet (if synchronizing via FTP) and start Outlook. OsaSync is available in PRO (v. 6.3.1) and Lite (v. 8.2) versions and supports Outlook 2000 and later.

Outlook Google Calendar Sync

Outlook Google Calendar Sync is completely free and syncs from the default Outlook calendar or any subfolder of it to a Google calendar of your choice. Attendees, reminders, free/busy attributes are all synced and events can be merged with existing if you need to. Does not need to be installed (can just be unzipped) and can automatically sync on a schedule or on request. Currently only one-way sync from Outlook to Google, but two-way sync is coming soon.


Outlook4Gmail is a free Outlook add-in providing easy contacts synchronization of your Outlook and Gmail accounts and address books.This add-in uses these Outlook and Gmail contact details: Name, Company, Phones, Emails, Addresses, Dates, Persons, Notes, etc. You define the direction of synchronization/update: you can sync or update either the Outlook or the Gmail address book (one-way synchronization) or choose to update both accounts simultaneously (two-way synchronization). Paid version syncs Gmail calendar too.


Synchronizes data between two machines running Outlook through a small data file that can be emailed, accessed on a shared network folder, or transferred any other way you might transfer a file. Includes conflict resolution feature.


Plug2Sync creates safety copies of your most important files while avoiding duplicates. Instant and automatic File Backup helps to keep your files safe and always up to date. Use USB drive or memory cards to share and synchronize Microsoft Outlook between two or more computers. Use Plug2Sync synchronizer to mirror your file folders. If you want to sync documents on your PC at work and laptop at home, Plug2Sync is the best solution. Easy to use and user friendly interface.


Synchronize Outlook calendars, tasks and contacts with SharePoint 2007 or higher. Items can be put directly on your personal calendar or in your primary contact list. A great way to synchronize with your team. Free trial available.

Public SyncTool

Synchronizes data between Outlook PST files (for example: PC workstation to notebook) and in addition "Personal Folders" of Exchange with PST files in both directions. All folders or selected folders can be synchronized. Supports an "escalation inquiry" by reciprocally changed entries and against the unintentional deletion of data. Supports Outlook 97 through Outlook 2003.

Qsynchronization for Outlook

Copies items between Outlook folders. Can be used to synchronize folders between PST files on two different machines, copy calendar entries to a public folder, or back up data to another PST file. (Version 1.6)

Sync2 for Outlook

Sync2 is a Microsoft Outlook sync tool to synchronize Outlook with Google, on several PCs, tablets or smartphones. Sync Outlook folders, such as email, calendar, contacts, tasks, notes and journal between multiple PCs without a server. Sync Outlook Calendar, Contacts and Tasks with Google, smartphones and tablets. Two way sync ensures that all changes made on any of the devices, will be moved to others. Latest version of Sync2 features an automatic Contact and Calendar folder backup and instant synchronization of changes made on Outlook folders. Version 2.62.2638


Sync2PST is a downloadable PC application that allows you to synchronize Microsoft Outlook PST files (stores all the Outlook settings and data). Synchronizing automatically or manually any of your Outlook folders between two or more computers (Desktop PC and Laptop) has never been easier. Outlook sync can be made via shared pst files located on the same PC, your network, USB flash or hard drives.

SynchPst for Outlook

SynchPst for Outlook synchronizes data between personal folders. Choose either single or multiple folders, with or without subfolders, and synchronize them quickly and efficiently.

SYNCING.NET for Outlook

SYNCING.NET for Outlook is a full featured solution for synchronization of Microsoft Outlook data between multiple computers. All data is transmitted directly between the computers via LAN/WLAN and/or the internet (peer-to-peer). Once selected, the Outlook data is synchronized completely automatically. Users don't need to do anything more and can work with Outlook as usual. Any changes to Outlook items are transferred immediately to all members of the sync network.


Use SyncMyCal to synchronizes Google Calendar calendaring service and Microsoft Outlook calendars automatically. Sync multiple calendars in Google Calendar calendaring service with single Outlook calendar and vice versa. Free Lite version available.


  1. Russell W Coover says

    I am looking for freeware. It appears that none of the above have any versions that will sync two PST files at no cost to individuals - codetwo's ad on the top left is for the software that has a free version and it does do just the default calendar and contacts folder on two machines.

    • Diane Poremsky says

      The freebies are feature limited - CodeTwo's free version only does contacts and calendar I recall. if that is all you need, then it's perfect.;)

  2. Ken Lyon says

    I've looked at lots & lots of ways to sync my outlook between my home pc and my laptop and I've tried several, and I've found that Osasync by Vaita is the only one that does the whole job at a reasonable cost. It syncs EVERYTHING. Not just email and contacts, but also calendar and tasks and notes. And by sync, I mean two-way sync, so you can be using one pc one minute and the other the next, and nothing gets confused or lost.

    As many pc's as you want can sync, and they can all choose what they want to sync. In my case, my wife and I share the contacts only.

    I strongly recommend you take a look at Osasync.


  3. Tim Casey says

    This is my first visit to this forum, and it looks like just what I've been looking for. Very helpful and comprehensive.

    Regarding the Briefcase option, a couple of questions/observations:

    1. I've tried Briefcase for synching My Documents between my desktop computer at work and my laptop, but I'm a little hesitant because I'm not sure if there is a danger of the wrong files getting overwritten. My desktop computer has over 5,000 document files in My Documents (spreadsheets, word docs, other office docs, and pdfs, plus about 5,000 jpg, all well-organized using a lot of sub-folders in a general to specific hierarchy. The pictures are separate from My Documents. They're kept in My Pictures, but I use the briefcase to include all of them.

    2. The synch seems to take forever. Even just opening the briefcase takes a long time. Is there a remedy for this? Should I have several briefcases? My hardware is quite current and fast on all other tasks. The laptop is HP dv7 with triple core processor and loads of room on the HD.

    3. Can the Briefcase address the problem of synching Outlook on the two machines? At present, They seem to be doing ok without briefcase except for my calendar. None of my appointments that were entered on my desktop computer are showing up on my laptop. I use Google Calendar which synchs my desktop computer's Outlook Calendar with my Google Calendar which I use on my Droid 2.

    I know that's a lot of questions, but any help would be appreciated. Thanks.


  4. sarah says

    I also am looking for a way to synchronize 2 outlook emailboxes. Preferably for free, but quality means more to me then money. What if you would use a service like dropbox to synch the .pst files on both computers? My initial thought is that it probably will work but when your internetconnection is slow it takes a while for the .pst to download to your computer. Same when the .pst becomes very large.

    • Diane Poremsky says

      I'm not sure dropbox will work, as outlook keeps a lock on the pst when its open. Do you need everything synced or just calendar and contacts? CodeTwo and others have free versions of their sync apps that support just the default calendar and contacts. It would be better than trying to use dropbox.

  5. Brad Baum says

    Thank you for sharing your time to help others.

    I update my laptop before going on a trip (which isn't very often) by copying the PST file from my desktop to my laptop. When I then open Outlook on the laptop and connect to the internet, it begins downloading large amounts of email messages that I had deleted from the desktop. I assume this happens due to the files still being on the server. Will changing the length of time they are kept on the server fix this or is there another solution?
    Thanks, Brad

    • Diane Poremsky says

      Yes, reducing the time you leave mail on the server will definitely help, as will configuring Outlook to delete mail from the server when you delete it from outlook (and empty the deleted items folder so outlook can update the server).

  6. Mark Smith says

    Is there a way to use one of the listed programs to synchronize Outlook contacts on two or more computers via Microsoft Skydrive for Windows?

  7. M Wilson says

    I treat my Outlook PST file(s) just like any other file I want to sync between computers, and it works easily and quickly (although you must close Outlook -- and all other open files -- before syncing).

    But an initial and thoughtful organization of the folders and files you plan to sync between computers -- including PST files -- is critical to making this work easily. Of course you can leave all those files in their default location, I just find it takes more navigation to find and flag them for syncing.

    So I created a "~ Work" folder on the C: drive where I keep all my working files and folders I need to use and sync repeatedly, all organized and named by function/task, not by program type. (The "~" in front of the "Work" name puts this folder at the very top of the list in Windows Explorer, even before folders with numbers in their name. That makes it very easy to find on all computers).

    One of those new sub-folders under "~ Work" is named "PST Files" and I move my Outlook.pst file(s) into this folder (you must reconfigure Outlook to recognize and point to that new file location which is easy to do following "how to" instructions in Help or on the web).

    Now choose and install a Sync program. There are many paid and free programs; I've been using Microsoft's SyncToy program (free) for years. It allows you to set up multiple computer pairings and identify folder sync requirements for each.

    The program uses file time stamps to identify and sync the latest file versions, and it will auto sync folder/file deletes, moves, renaming etc. (But you can also configure different sync functions). You could do all folders, or set up just an Outlook PST file sync as an option.

    I use my office Desktop as the main computer, and run a sync with the laptop I travel with. After the initial run and configuration, syncing even large files is usually completed while I get ready to leave (subject to the connection speed between the computers). If I know I have large data updates on one computer, I 'pre-sync' during lunch or overnight, and then do a quick last minute sync just before I leave.

    By syncing the entire Outlook PST file, everything within Outlook (e.g. notes, tasks, contacts, calendars, emails, etc.) is updated between computers at the same time as my other files with just a few mouse clicks.

  8. Matthias says

    I am also trying to figure a way to use a free Sync programme. Does SyncToy allows for syncing of Outlook without the use of a FlashDrive or Network Drive?

  9. ejp says

    HI, I'm totally new to syncing, so the answer to my problem may be somewhere on your site, but there's so much info, it's overwhelming and hard to know where to start.

    I want to sync Outlook on a PC with a new iPad's email program. can you provide brief step-by-step broad brush stroke instructions which I can flesh out elsewhere on your site, or point me to a link that covers this?

    Secondly, if I check the Outlook box: "leave email on server" then as PC "A" and PC "B" download email over time, how does the ATT/Yahoo pop3 server know PC "B" (for example) has already download the latest email while PC "A" has not so that "B" won't redundantly get the same email over and over.

    Thank you!

    • Diane Poremsky says

      Yahoo supports IMAP and if you use it, you'll have identical mail on all devices. When you set up the account on the ipad, i think it will set it up as imap. See online services for the server names to use in outlook. This will take care of the email in outlook. The ipad will sync yahoo calendar and contacts but they won't sync to outlook. If you want to sync calendar and contacts between outlook and the ipad you'll need to use the icloud.

  10. ejp says

    On the PC to iPad sync issue, after some digging, it seems if I just set both machines for IMAP, I'm done. is it that easy? Or, should I use iCloud on both machines.

    • Diane Poremsky says

      You need to use IMAP for email and if you want to sync calendar and contacts, you need to use icloud.

  11. ejp says

    OK, one more question on this. To create the IMAP acct. I have to delete the existing POP3 acct.first, right? How do I get existing email and folders to show in new IMAP acct? won't it be out of sight once I remove the POP acct.? I know where the .pst file is located if that helps.

    Can I just do a standard export/import?

    Just thought of one more. If I want to sync contacts and calendar I understand I need iCloud. Does this mean no IMAP? Do it all with iCloud? Are IMAP and iCloud mutually exclusive?


    • Diane Poremsky says

      No, you can keep the pop account in your profile. Set it to leave mail on the server (Account Settings, double click on the account, then More Settings, Advanced tab) - probably will want to go into Send and Receive settings and set it so it won't check mail (Ctrl+Alt+S, select the the send and receive group, then Edit - select the account and deselect Include selected account in SR group.)

      Add the IMAP account, copy the mail over to it and when you finished and checked (via web access) that the mail uploaded ok, you can remove the account. The pst should remain in the account, you'll remove it after you move or copy calendar, contacts, tasks and notes to a new local pst or you can keep it in the profile.

  12. Michael Moser says

    Re. your list: Syncing.Net is dead (the company went bust last summer). And OsaSync has issues with Outlook 2013. On some systems it installs fine, on others it refuses to install (the problem seems to be some .dll registration issue that nobody yet understands, not even its author...).

    • Diane Poremsky says is in the process of getting a new owner - it's still available. I expect most addins to require an update to work with Outlook 2013, especially since most Outlook installs will be Click to Run.

  13. WillyK says

    If your email account receives email on several PCs and leaves a copy on the (ISP) server, then you'll get duplicates in every Outlook client when using SYNCING.NET.

    According to Support, in order to avoid that you either must abandon leaving copies on the server, or keep a single "master" PC online all the time receiving all email (the only one), while all other PCs only receive copies of the email on the "master" PC via Otherwise you'll get duplicates.

    Of course, this is an unfortunate weakness with which should be able to eliminate duplicates thus providing true synchronization. The workarounds above didn't work for me since I can't have a dedicated PC non-stop online (and it may crash as PCs do every now and then), and I also need to be able to access my email on the ISP server from an arbitrary PC at my work place or in a coffee shop for that matter.

    So I hope are going to fix that in the future. Otherwise the tool is great, and if you don't care about leaving a copy of your emails on the server it'll work for you.

  14. WillyK says

    ... and of course, if you want to check your email on the ISP server by using your iPad and/or iPhone, it's probably a good idea to leave a copy there :) unless you want to buy yet another product to fix that too (even though it's already working for free...)

  15. WillyK says

    Btw, OsaSync seems to suffer of the same deficiency (quote from the product documentation: "If send/receive on different machines connects to the same ISP mailbox then do not set the Outlook option: leave messages on the server.").
    Anyone who knows of a tool that would recognize and effectively filter identical email duplicates when syncronizing Outlook across several PCs receiving email from the shared ISP mailbox?

    • Diane Poremsky says

      I would do one of two things:
      Use a master machine that downloads, set the others to sync with the master and send but not receive mail.
      Deliver the mail the account downloads to a data file that does not sync. You'll have dupes, but they won't be in the file that syncs. Out of sight, out of mind.

  16. WillyK says

    Thanks Diane. I liked the last one. Clever idea! Actually, I suggested to SYNCING.NET to consider providing a "master" service on behalf of the customer (they already have all that is to it). It's a win-win and while eliminating the problem with the dupes is creating, such an offer will position them uniquely on the market (as far as I know no one else is offering that today).

    • Diane Poremsky says

      Keep in mind I have not tested the scenario - in Outlook 2007 and up and you select the folder an account delivers to (does not need to be in the default date file). I last tested a few years ago and forgot how it uses default date files, so it may be better in theory.

  17. WillyK says

    Aaah... The second solution would still require a "master" receiving the original email from the server (then the "master" would have to be alive all the time etc. etc. so we're back to square 1...). Or am I missing something?

    • Diane Poremsky says

      Nope, you aren't missing anything. It would be the same solution gave you.

      Is IMAP an option? That would solve these problems.

    • Diane Poremsky says

      Correction, yes, it requires a master, but when the master is off, you'll have the locally downloaded mail available. It just won't pollute the master file.

  18. WillyK says

    It seems that there's no way of distinguishing between email arriving from the ISP and from the SYNCING.NET service... I believe SYNCING.NET appears above Outlook as if it's my ISP so every email received looks alike to Outlook and it uses the currently assigned folder for both the original email and the duplicates... Pity. Of course, I may have done something dumb, but there's not a lot of options to be mistaken about, but still please let me know how you thought the Outlook must be setup in this case.

    • Diane Poremsky says

      Dang. So much for my bright idea. :) When i last tested it, it was in the pre-2007 days, where you couldn't pick the delivery folder.

  19. WillyK says

    At the end, it all boils down to:
    1) Either setting up a dedicated "email-machine" (if you can afford that) unless you have one eternally alive and kicking, or
    2) SYNCING.NET providing the "master" hub so you don't have to receive email from the ISP mailbox on any machine (then also your iPad/iPhone and Internet access of the ISP box will be fine too).
    There u go folks...

    • Diane Poremsky says

      third option (and I know this will work): IMAP. If your host doesn't support IMAP, find a new host. You'll still need for calendar and contacts, but can access the mail from other computers using imap when the master if offline.

      A second profile for the times the sync master is offline should also work, provided does not lock into all Outlook profiles.

  20. Sanchit Sharma says

    I have configured two email accounts in Outlook 2010 on a single system, which are photocopy of each other with similar folder structures and rules. I use only one of the email accounts actively and in that account I manually drag some emails from inbox to different folders. I want that when I manually drag the emails in the account I actively use, the corresponding email in the other account should also automatically move to that folder in that account. In other words, the two accounts should be in sync. Please suggest.

    • Diane Poremsky says

      Unfortunately, that is not possible with 2 separate email accounts. If it was one account in 2 profiles you could share the pst. Sorry.

  21. Jim Lotstein says

    Is it possible to synchronize the email, including all folders, on a PC running Outlook with a MacBook Pro running Outlook using the procedures described in this string? If so, are there any special steps that must be taken to do so? Thanks.

    • Diane Poremsky says

      Only if you use IMAP or Exchange server. The utilities won't work with mac.

  22. Shea says

    Hello, I am not sure if this is the correct place to ask this question but from the research I've done and the posts I've read, you are the Go To person on this subject. I manage a small office that requires our contact database of over 3000 to be shared among multiple pc's and smartphones. We currently use one shared Plaxo account, which works fine for our pc's using Outlook (not Exchange). It was manageable on our Blackberry Torch 9810's because I would manually sync the contacts (one-way only to device) periodically after I deleted all the existing contacts on the phone. In between we would email vCards to our phones (tedious, I know). The iphone did not work with Plaxo since the user was not the Plaxo account holder (or Itunes) - different people and therefore different emails addresses. We recently went with the BB Z10, which as you know, does not allow you to wipe the contacts prior to uploading again. I know they will rectify this eventually but with all of the technology and software in the world, there has to be a way to do this without manually syncing phones and sending ourselves vCards. Plus, I always was skeptical of how Plaxo knew which data to use as the current data since multiple people, multiple pc's and multiple phones were all using one Plaxo account. In my research, the paid software doesn't seem to be worth the money for what it is giving. Could you help direct me to find a solution to this problem?? Thank you so much!!!

    • Diane Poremsky says

      I will look into it. I wasn't aware than BB10 couldn't clear old contacts - I've been thinking about getting one (I miss my Storm - it could do everything Windows Phone can't. :( )

  23. Nancy A. Sheffield says

    Is there any program that will allow me to use a PDA to sync Outlook 2007 with Outlook 2010? (I live in the weeds with spotty to no cell coverage, so upgrading to a smartphone doesn't make economic sense.) I have an HP iPAQ hx2495B and for years have successfully used Windows Mobile Device Center to sync Outlook calendars between work and home. Even when work upgraded to Outlook 2010, I was able to successfully sync the two until April 2013; now Outlook 2010 will not sync with my iPAQ, though Outlook 2007 (at home) still syncs perfectly. Any help or advice will be greatly appreciated -- thank you!

  24. Tailan Chi says

    I have Outlook on both my office and my home computers and want to see the same setup for email, contacts, calendar and tasks on both computers. I found one solution that has worked well with Outlook 2010, but that solution is not working with Outlook 2013. Specifically, in Outlook 2010, I have been using the cashed mode for my Exchange account on both computers by transferring the offline data file xxx.ost between them every time that I switch from one to the other. After upgrading to Outlook 2013, however, I have encountered a series of problems with this method.

    First, if I transfer the offline data file xxx.ost from one computer to the other, Outlook 2013 tells me that the file belongs to a different mailbox and starts a new xxx.ost file, taking a long time to download my emails and other data from the Exchange server.

    Second, if I don’t transfer the offline data file xxx.ost to the Outlook folder on Computer B after using Outlook 2013 in the cashed mode on Computer A, Outlook 2013 on Computer B tells me that the existing xxx.ost file is obsolete and ask me to delete the file and restart the program, requiring even more time for me to make Outlook operational.

    Third, I also tried to disable the cashed mode in Outlook 2013 on Computer A. Even though I have not yet seen what happens to Outlook on Computer B under this condition, I have already encountered a new problem. Specifically, the Peek for Tasks in the Outlook running in non-cashed mode on Computer A shows an empty To-Do list rather than Tasks, and I cannot make the Peek function work for Tasks after trying many different things.

    Any suggestions will be appreciated.

    • Diane Poremsky says

      Why not just sync the mailbox on each computer? That is the correct way to do it - the changes on one computer sync to the server and down to the other computer. Delete the ost that complains about being obsolete and let outlook sync it - it should only need synced once - and don't try to copy the cache files between computers.

      Honestly, I'm shocked this worked in older versions- cache files are tied to the profile that created it.

  25. Nancy says

    I am not sure if this is answered or if this is even the right forum but am desperate so here goes...I use Outlook 2010 at both work and home. They are separate accounts neither using exchange. I want to sync the calendar from home to my iPhone and sync the calendar from work to my iPhone so I never miss an appointment or meeting. So, I can specify sync only calendar but when I do this, I end up with 18 entries that it's the 4th of July and 20 reminders it's my daughters birthday. Some messages sync other don't. Rather bizarre. My only options when syncing is replace all or merge. I hit merge. Ugh, I spend half my life deleting duplicates. I just want to know if I have a work appt at 10 on Monday or a hair appointment on Thursday at 11. Is there way to not sync duplicates? I don't think I can use the same calendar on my iphone since work and home are tied to different profiles. Doesn't seem to much to ask. I miss my synced seamlessly. And, to make matters worse, I may be tech challenged to boot...the jury is still out on that.

    Any idea why this happens? I have posted this every where I can think of to no avail. Any help would be appreciated.

    • Diane Poremsky says

      You should be able to sync to separate calendars on the phone - you can view them as one on the phone. But I haven't tried this with either itunes or iCloud, so maybe its not possible. (This is how it works with exchange, gmail, and accounts). It won't eliminate all dupes - if you have a b-day on both calendars, it will be on the device twice - but would address the merging problems.

  26. Shea says

    I have the same (or extremely similar) problem. And I have the new Blackberry Z10 and the new OS and Link do NOT sync seamlessly. Our office needs to share the same calendar and contact database on our computers and phones. We currently use Plaxo on desktops and laptops (works ok but we use one account, which is not how you are supposed to). Before our BB Z10's, I used BBDM to update our blackberry phones manually. As I said, that is not possible at this time with the Z10's (or if it is, I don't know how yet). And I have not figured out how to bring any iphones or samsungs in on the data sharing. I am sure there are software programs or clouds that do a great job, but my employer wants something cheap/free.

    • Diane Poremsky says

      Unfortunately, I can't check out how link works because I had to replace my BB before the new ones were released - and I'm sorry to say, I went with a windows phone. :(

      So, Plaxo syncs all the computers so they are identical then the computers sync with the BB?

  27. rameshmehay says

    Hi Diane,
    I have Outlook 365, a Google IMAP account, a PC and laptop. I am trying to get Outlook 365 to synchronise between my PC and the laptop. But it won't have it. Both PC and Laptop Outlooks will download new email okay (so they are both communicating with Google). However, if I action an email on one of the computers, it won't show it on the other (even weeks later). So, if I delete an email on the laptop, it will still be there on the PC. If I move an email to an email folder, it wont do it on the other, even if the same folder exists. And if I create a delete a folder on one, it won't do it on the other. What am I doing wrong? Is there a setting or something. Please help as I have been working on a solution for months and the internet is not helping. Many thanks

    Ramesh, Leeds UK

  28. rameshmehay says

    Thanks for replying Diane. Did you mean November updates for Outlook or Windows or both? Yes, the changes do appear on Google Mail online.

  29. Gill Courage says

    We have a problem now....been using Exchange on a Small Business Server for three years and it works well. An office move has led to our IT provider suggesting a move to hosted Exchange because we have suffered some power outages which interrupt email service.
    But we use Code2 Exchange sync to keep a company contacts file and calendar as well as sharing some email folders. The contacts folder is a subfile of everyone's Outlook contacts and synced on the server. This propagates seamlessly to our iPhones and iPads. Calendar is similarly handled and the. Email folders are shared as required between working groups.
    Hosted Exchange sounds good but we lose the ability to run extra software on the server and cannot run without the shared contacts/calendar/emails.
    I am told that Microsft is stopping supporting Small Business Server so we don't want to waste money on it now......
    Is Microsoft actually listening to the business community who now depend on their products? There seems no solution available that will allow us to run hosted Exchange but we cannot keep our Small Business Server. Catch 22.
    Is the another provider?

  30. Mark Southern says

    I currently use one computer with Outlook 2013 between home & office to access my mailbox on exchange server 2010 at office. I now have another laptop to keep at home and need to configure two computers to access same data file at office on server. I don't know anything about how to set this up. Where do I start with configuring both computers to make this work? Any help would be appreciated. Thank you.

    • Diane Poremsky says

      You want to set up exchange mailbox on both? Add your Exchange account to your profile at home - use auto account setup and enter your email address and password and see if it can find your server and configure it as Exchange. If so, that's all you need to do. If your company doesn't have Exchange configured for Outlook anywhere, you may be able to use POP3 or IMAP for email, but won't have calendar and contacts.

  31. Ramesh says

    Diane told me to make sure all windows updates were update on all machines. And then, the synchronisation worked a treat. Thanks Diane - so my problem (about laptop and PC outlook not synchronising) was because of out of date windows updates.

  32. Tony says

    I run outlook 2010 with two separate email accounts (one personal, the other work); both are exchange; my problem is with the calendars associated with these two accounts. My blackberry wirelessly syncs the calendar through BES with my personal account flawlessly, but is not capable of handling wireless sync with my work account (because it is IMAP not BES). I would like to automatically perform a 1-way sync from my work calendar to my personal calendar, so that all my appointments will wirelessly sync with my blackberry. I have not found a tool that does this. The codetwo foldersync addin worked flawlessly but it is only a 2-way sync, and I do not want my personal appointments getting added to my work calendar. I'd prefer not to add a gmail or cloud-based calendar into the mix here to accomplish this - I am amazed that this functionality is so hard to find. Any ideas??? Thanks!

  33. Rakesh says

    Hi Diane,
    i configured a mail account in two system with sub-folders in inbox of that mail account, If i delete a mail in one outlook is it replicate the changes to another one?

    • Diane Poremsky says

      It depends on what type of email account you are using. POp3, no, it won't sync. IMAP, yes, changes should sync.

  34. Damien says

    Don't waste money on SimpleSYN. We purchased 6 business licences and its never worked and they offer no backup support.

    • Barb Brady says

      Just as a note: I just tried SimpleSYN and didn't get very far. I just installed it on the main desktop. I paused and made sure everything looked ok and that I could backup. Nope! It wouldn't let me backup with SimpleSYn running. I can't take the risk that my nightly backups are not going to work.

  35. Siva Raakesh says

    Hi Diane,

    thanks for replying me.

    i've another one problem,

    after windows update my outlook is not sending mails, it showing the error lke "ISP is blocking the port" and something it's telling.

    before that it was working fine.
    and i tested the new system with outlook configured that testing PC is working fine in same network.

    after these i uninstalled the outlook updates from updates history but no use still it's not working.

    • Diane Poremsky says

      What port are you using in Outlook? ISPs often block port 25 but not other common mail ports but it's odd that it just started coming up. Account Settings > double click on the account, then More Settings, Advanced to check.

  36. Siva Raakesh says

    Thanks for Pleasant Reply
    i'm using 25 and 143 but the same configuration and same network in another PC outlook is working fine.

    • Diane Poremsky says

      Well, port 25 is the one that is most often blocked by ISPs, but they would block it on all computers using the internet connection. Does your mail provider support additional ports? Most also use 465 and/or 587 (and a few, like GoDaddy, allow non-standard ones like 3535 and 80).

      Are you using the same antivirus and firewall on all computers?

  37. Mark says

    Hello, I am not sure if this is the correct place to ask this question but I don't think I need to sync, do I? I have 2 computers on different floors, they NEVER will be running at the same time; can I place the PST file on a USB thumb drive (whatever it's called), and just carry it to the 2nd computer and plug it in and turn the computer on? If it matters, I'm talking about Outlook 2007 with about 5 or 6 e-mail accounts & aliases. I do use the Rules Wizard but rarely use the calendar/appointments/etc. My accounts are all POP3 if it matters and I've been using MS Office Outlook for too many years to switch or use webmail. I don't have the 2nd computer yet but it will probably just share the internet connection and a huge, old, large format color laser printer plugged into the router/modem. Thanks for any help.

    • Diane Poremsky says

      yes, moving the pst is an option if you want to keep them in sync. if you arent using the calendar or contacts, and only need to keep mail in sync, imap is a good optipn too.

  38. Paul says

    Hello there,

    For the past few years I've been syncing my work emails, calendar & contacts (in outlook 2007) on a couple of computers through Google calendar sync. Now that this service is no longer running I was wondering what platform/software/tool might be best to use to continue such tasks. Ideally I'd like something that works with 2 way sync, and updates the changes as quickly as possible, and something possibly free or not to pricey.

    Thanks in advance.

  39. Bob Brannon says

    I have a POP3 acct and by all accounts above, syncing with that is difficult. Does gmail use IMAP? If it does, is that all I need to sync emails between computers (in other words, to have all folders on both computers contain the exact same info)? I can deal w/contacts, tasks, calendar etc., by periodically copying my pst file from one computer to the other.

    • Diane Poremsky says

      Gmail supports IMAP - you need to enable it in settings - and yes, it will enable you to have mail synced on all computers, including all mail folders and sent items.

  40. Pamela Bickett says

    I have been using CodeTwo Outlook Sync since last June to sync my manager's outlook contacts on my computer, but it stopped working a couple of months ago. The tool opens and no errors come up but it doesn't transfer any data. The sync function starts and the display shows it syncs but nothing is updated. When I review the Code Two site, it only mentions the 30-day free trial and it's now $120 to sync 2 computers. Maybe they changed something since it was working flawlessly for about 6-7 months. I uninstalled the program today and asked my mgr to do the same so we can start from scratch tomorrow, but I think we're going to have to pay the $120. A little frustrating. I knew there would be little to no tech support on a free product, but I did email them and all I got was the response about the 30-day trial being expired, apparently they don't know I should still be able to sync contacts. :-(

    • Diane PoremskyDiane Poremsky says

      AFAIK, they still have the free version for 2 computers, 1 calendar, 1 contacts folder - although the website is not real clear on it. It keeps talking about Free and expiring at 30 days. If they still offer the free version, the paid version is required to sync additional folders - the free version includes a 30 day trial of the paid version. The free version may be for commercial use only.

      If you have the original exe you used to install it before, that should install the free version again. Also, make sure their data files or logs are deleted - there should be a sync log somewhere they use to keep track of what was synced. (This may be all you need to do to fix the sync problem.)

  41. Pamela Bickett says

    This is the message I received from CodeTwo support this morning:

    Hello Pamela,

    You could have used the product for longer than 30 days because it was an old version of it, which we do not support anymore.
    Now our policy has changed and the latest version could be used only 30 days out of charge and you can download it from our website:
    If you would like to purchase the product after testing it please visit this page:
    Please let me know if you have any problem with the latest version of the software.

    • Diane PoremskyDiane Poremsky says

      That explains it. If you saved a copy of the installer when you first installed it, use it. It's possible updates will disable the free version, so you won't be able to install updates. Or look at other products - like Sync2. AFAIK, they are still free for limited folders on 2 computers. (Will update the tools description next).

  42. Kathryn Kelly says

    Tried Sync2 from It does not say anywhere on their website that I can find that you need to buy a separate license for every computer you want to synchronize. Boo on them. What is the point of synchronizing software if it won't sync at least two computers? And they were NOT nice about it.

  43. Pamela Bickett says

    I'm not sure who 4Team is, but I finally got my issue resolved after purchasing the full version of Code Two Outlook Sync. In retrospect, I think we could have continued to use the free version because the error was a MAPI profile setting error on computer 1. We ended up buying the software to sync contacts and calendar for 2 computers. Once the tech supt team helped resolve the MAPI error, it's working fine.

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